Measures distance covered during that trip only in km. This can be reset, unlike the odometer which logs the complete distance that the car runs during its lifetime. Some cars have a multi-function display that shows a lot of information, including tank range, instantaneous fuel consumption and ambient temperature.

Helps condensed water evaporate from the glass area at the back, improving rear visibility. Is especially useful in humid or cold areas. If you see thin horizontal lines running across the rear glass, a rear defogger or 'heater' is present.

An Anti-Lock Braking system helps you retain steering control during panic stops and in low-grip situations like in the wet. It regularly will shorten on-road stopping distances as well. A must-have that is well worth every paisa.

An advanced version of ABS, EBD regulates braking force for each wheel. Helps immensely in differing situations like when the vehicle has only one occupant, or all five. Or even if a single wheel goes off into the dirt, EBD could be the difference between a scare and a crash.

Inflatable bags of gas that deploy in the event of a crash, preventing injury - for example, like that arising from a driver's face hitting the steering wheel during a crash. In cars with eight or more airbags, they practically surround the occupants in a crash, insulating them from the worst. They need to be used in conjunction with seat-belts, else they aren't effective.

It'll take more than just a properly cut key to steal a car with an immobiliser: the key and engine share a radio-frequency code that has to match before the car's computer will allow the engine to start with the key.

Datsun Go Plus D Tech Specs

Denotes the swept volume of the engine. The more the displacement, the less stressed your engine will be. This isn't a direct relation to power or torque figures any more with the widespread use of turbocharging.

Denotes the swept volume of the engine. The more the displacement, the less stressed your engine will be. This isn't a direct relation to power or torque figures any more with the widespread use of turbocharging.

Denotes twisting force of your engine. Is a good indicator of how drivable your car is - the higher the torque figure, the less you'll have to change gears in heavy traffic or to overtake on the highway.

The more the number of cylinders, the more power that can be generated from a given displacement. Manufacturers are cutting down on this figure now - less manufacturing costs (lower sticker prices) and increased fuel efficiency (less internal friction) are the obvious benefits.

Valves are what allow air and fuel in and out of your engine. More the valves, the better your engine will breathe and the more efficient it will be. The 2-valve-per-head designs offer very good torque at low revs, making them very good for commuting.

The weight of the vehicle. A lighter car will use less fuel, be quick, and change direction more readily - all positive characteristics in a car. Safety features like ABS, airbags and even crumple zones add to the weight of a car, but not by much.

The distance from the ground to the nearest object on the car's underside. Will your car clear the little hill masquerading as a speed breaker on the road outside your house? Here's where you find out.